ES479604A1 - Multistage folded switching network for a PCM switching unit. - Google Patents

Multistage folded switching network for a PCM switching unit.

Info

Publication number
ES479604A1
ES479604A1 ES479604A ES479604A ES479604A1 ES 479604 A1 ES479604 A1 ES 479604A1 ES 479604 A ES479604 A ES 479604A ES 479604 A ES479604 A ES 479604A ES 479604 A1 ES479604 A1 ES 479604A1
Authority
ES
Spain
Prior art keywords
switching
pcm
lines
stage
major
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES479604A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tenovis GmbH and Co KG
Original Assignee
Telefonbau und Normalzeit GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6038455&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES479604(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Telefonbau und Normalzeit GmbH filed Critical Telefonbau und Normalzeit GmbH
Publication of ES479604A1 publication Critical patent/ES479604A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

The switching network having a reversed trunking scheme of a PCM-(pulse code modulated -) exchange is formed by a first (time division) switching stage (A) consisting of individual switching groups (G l to G m) combined into one major switching group (GG), a second (space division) switching Stage (B1) formed by a number of PCM-lines equal to the number of switching groups (G l to G m) within one major switching group (GG), whereby each switching group is connected with a PCM-line in the outgoing direction, whereas a switching group individual multiplexer (M) performing the access of all PCM-lines to each switching group (G) and a third (space division) switching stage (B2) formed by a number of PCM-lines equal to the number of major switching groups (GG), the bitrate on said PCM-lines being a multiple number of the bitrate of the PCM-lines of the second (space division) switching stage. In the third switching stage (B2) all major switching groups have access to all PCM-lines of the second switching stage (B1) in the incoming direction, whereas in the outgoing direction acess is provided to the individual switching groups of the first switching stage (A). For adaptation of the faster third switching stage (B2) to the slower stages (A and B1) each major switching group (GG) is equipped with the necessary bitrate converters.
ES479604A 1978-04-29 1979-04-16 Multistage folded switching network for a PCM switching unit. Expired ES479604A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2819126A DE2819126C2 (en) 1978-04-29 1978-04-29 Multi-level switching network with reverse grouping for a PCM switching system

Publications (1)

Publication Number Publication Date
ES479604A1 true ES479604A1 (en) 1979-07-01

Family

ID=6038455

Family Applications (1)

Application Number Title Priority Date Filing Date
ES479604A Expired ES479604A1 (en) 1978-04-29 1979-04-16 Multistage folded switching network for a PCM switching unit.

Country Status (5)

Country Link
US (1) US4245339A (en)
EP (1) EP0005157B1 (en)
AU (1) AU4654079A (en)
DE (1) DE2819126C2 (en)
ES (1) ES479604A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2440672A1 (en) * 1978-10-30 1980-05-30 Cit Alcatel MULTIPLEX SPACE SWITCH
US4287590A (en) * 1979-06-25 1981-09-01 International Standard Electric Corporation Time division multiplex communication system
DE2935545C2 (en) * 1979-09-03 1982-06-03 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Circuit arrangement for connecting inquiry stations to a multi-level, time-division multiplex telephone exchange.
US4355384A (en) * 1980-03-19 1982-10-19 Digital Switch Corporation Non-blocking expandable switching matrix for a telecommunication system
DE3016706A1 (en) * 1980-04-30 1981-11-05 Siemens AG, 1000 Berlin und 8000 München TIME MULTIPLEX COUPLING
GB2083319B (en) 1980-06-25 1984-03-28 Plessey Co Ltd Digital switching module
JPS5726955A (en) * 1980-07-25 1982-02-13 Hitachi Ltd Backup control system
FR2513471A1 (en) * 1981-09-18 1983-03-25 Cit Alcatel SIGNAL DISTRIBUTION DEVICE FOR TEMPORAL SELF-TIMER
US4528658A (en) * 1982-09-13 1985-07-09 Italtel-Societa Italiana Telecomunicazioni S.P.A. Telecommunication system with a multiplicity of modular units interchanging digital messages
US6519262B1 (en) * 1998-06-10 2003-02-11 Trw Inc. Time division multiplex approach for multiple transmitter broadcasting

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2454090C2 (en) * 1974-11-14 1976-09-23 Siemens Ag Four-wire through-switching, a multi-stage reverse grouping having switching matrix
LU72812A1 (en) * 1974-11-14 1975-09-29
US4035584A (en) * 1975-12-08 1977-07-12 Bell Telephone Laboratories, Incorporated Space division network for time-division switching systems
DE2618922C2 (en) * 1976-04-29 1978-04-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Circuit arrangement for PCM time division multiplex exchanges
US4064370A (en) * 1976-07-01 1977-12-20 Bell Telephone Laboratories, Incorporated Time-division switching system

Also Published As

Publication number Publication date
EP0005157A3 (en) 1979-11-28
US4245339A (en) 1981-01-13
AU4654079A (en) 1979-11-01
EP0005157B1 (en) 1981-09-16
DE2819126B1 (en) 1979-03-29
EP0005157A2 (en) 1979-11-14
DE2819126C2 (en) 1979-11-22

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